Results 31 to 40 of about 2,713 (138)

Molecular-phylogenetic analyses of Ixodes species from South Africa suggest an African origin of bird-associated exophilic ticks (subgenus Trichotoixodes)

open access: yesParasites & Vectors, 2023
Background Among hard ticks (Acari: Ixodidae), the genus Ixodes comprises the highest number of species, which in turn are most numerous in the Afrotropical zoogeographic region.
Sándor Hornok   +9 more
doaj   +1 more source

The Fast and the Furriest: Investigating the Rate of Selection on Mammalian Toxins

open access: yesToxins, 2022
The evolution of venom and the selection pressures that act on toxins have been increasingly researched within toxinology in the last two decades, in part due to the exceptionally high rates of diversifying selection observed in animal toxins.
Leah Lucy Joscelyne Fitzpatrick   +3 more
doaj   +1 more source

Identifying Norwegian shrews (Soricidae) from non-dental mandibular characters

open access: yesFauna Norvegica, 1992
A method for discriminating between 6 species of Norwegian shrews (Soricidae) based on a few characters in the lower mandible is described. Length, height, and one angle were measured in cleaned mandibles (n = 297). When plotting angle/length on height,
Tore Fredriksen   +2 more
doaj   +1 more source

The complete mitochondrial genome of Sorex minutissimus (Eulipotyphla: Soricidae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
In this study, the complete mitochondrial genome of Sorex minutissimus was sequenced and deposited to GeneBank for the first time using muscle tissue. This mitochondrial genome is a circular molecule of 16,700 bp in length and sequence analysis showed it
Bo Pang   +6 more
doaj   +1 more source

A higher-level MRP supertree of placental mammals [PDF]

open access: yes, 2006
Background The higher-level phylogeny of placental mammals has long been a phylogenetic Gordian knot, with disagreement about both the precise contents of, and relationships between, the extant orders.
Robin MD Beck   +4 more
core   +2 more sources

They can dig it: semifossorial habits of the Mexican small-eared shrew (Mammalia: Cryptotis mexicanus)

open access: yesRevista Mexicana de Biodiversidad, 2017
Some small-eared shrews, genus Cryptotis, display modifications of the forelimb that have been interpreted as an adaptation for burrowing. As most of the species in the genus inhabit areas with poor accessibility and it is difficult to obtain direct ...
Lázaro Guevara
doaj   +1 more source

Beremendia (Mammalia, Soricidae) remains from the late Early Pleistocene Somssich Hill 2 locality (Southern Hungary) and their taxonomic, biostratigraphical, palaeoecological and palaeobiogeographical relations [PDF]

open access: yes, 2014
Beremendia fi ssidens and B. minor remains of the late Early Pleistocene vertebrate fauna of the Somssich Hill 2 locality are described. B. minor is reported here as a new element in the site.
Botka, D., Mészáros, L.
core   +5 more sources

Regional variation in the size of the common shrew Sorex araneus in Norway

open access: yesFauna Norvegica, 1994
We analyzed variation related to region, age, and sex in the length and height of the mandible of the common shrew Sorex araneus in Norway (n = 261), with some notes on the length of the tail and on the body weight. Specimens were classified by four age
Karl Frafjord   +2 more
doaj   +1 more source

A new Late Agenian (MN2a, Early Miocene) fossil assemblage from Wallenried (Molasse Basin, Canton Fribourg, Switzerland) [PDF]

open access: yes, 2016
Excavations of two fossiliferous layers in the Wallenried sand- and marl pit produced a very diversified vertebrate fauna. New material allows the reassessment of the taxonomic position of the ruminant taxa Andegameryx andegaviensis and endemic ...
A Bravard   +94 more
core   +2 more sources

Global shifts in mammalian population trends reveal key predictors of virus spillover risk. [PDF]

open access: yes, 2020
Emerging infectious diseases in humans are frequently caused by pathogens originating from animal hosts, and zoonotic disease outbreaks present a major challenge to global health.
Doyle, Megan M   +6 more
core  

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